Charge your tablets, smartphones and USB powered devices on the go using the Lenmar Mutant Portable Power Pack. This portable power bank has a 20,800 mAh capacity for extensive charging. Equipped with four USB ports, it can charge up to two tablets and two mobile phones at the same time. The USB battery pack comes with an AC power adapter which recharges the Mutant in 10 hours for user convenience. It also features an indicator to check the charging status effortlessly.